Furnace for annealing and flattening glass



Feb. 21,1928.

J. J. GEYSSNER FURNACE FOR ANNEALING AND FLATTENING-GLASS Filed Dec. 6 1925 A TTORNEY` Patented Feb. 2l, i928'.y

UITED STA can, oxLAnoMA, AssiGNon or ONE-THIRD 'ro 'moms JOSEPH J'. GESSNER, OF- OKMUL l y LA M. GESSNER, AND ONE-THIRD T JOHN R. SCOHY,

WATERS, ONE-THIRD T0 LU ALL OF OKMULGEE, OKLAHOMA.

The obj ect of rovide an improved fl which plit cylin accurately and 5 has heretofore been customary.

The accompanying drawings i agrammatically my i is a central vertical sec Y tion on line 2-2 of Fig. 1.

In the drawing indi chamber of a flattening oven an table 12 being rotary iattening.

they are struction',

with the bars 15 an horizontally '-reciprocab that a sheet of may connected directly wi point closely adjacent sheet of glass h entered into be intermittently raise redeposited on bars 15.

Heretofore the annea th the chamberl() at a the table 12 so that, a

shielded from th Mypresent inven vious constructions in thatI fo 1chamber 10 and the entrance en a supplemental heating I call a settling chamber. is most conveniently a la chamber 10 so that the heat TES PATENT OFFICE.

F'U'RNACE FOR`ANNEALING AND 'FLATTENING GLASS.

Application filed December 6, 19526.A Serial No. 153,008.

my present invention is to ders o attening oven within f glass may be more completely flattened than mprovement.

tion and Fig. 2 a secn of bars ell-known conerdigitated cates the 15 4and llustrate dif Fig.

main

d lehr 11, a mounted in said chamber and provided with a. plurality of attening stones Communicating annealing tunnel 14 with ed the usual support ciprocating carrying No attempt has been ma detail the constructie of common and w the bars 16 being int d being vertically and le ,in such manner with chamber 10 is the in which are mounting bars 15 and the rebars 16.

de to illustrate in glass placed upon bars 15 aving been flattened chamb d, forwarded and y ling tunnel 14: hasl upon been placed upon the ld be promptly en it would be may freely circulate in the settling chamber 17. I also provide supplemental bu by means of which may be establishe Chamber 17 is wise of the carrying ro time will elapse freshly flattened the receiving en when said sheet have been proj'ectedinto the receiving end tunnel 14, thatl of such between proper heating co d in settling chamber dimensions, ds, that a suiiicient the time when a rners 18 nditions length-y sheet has been placed upon said Sheet,

being' softe o ned 1 and so that the annealing tunnel by the heat maintained in chamber 17, may settle iiatly upon the bars 15 and 16.

In order to insure proper heat conditions within the tunnel, so that the sheets of glass may at first be suiiiciently weakened to per# mitgravity to thoroughly flatten the sheets sheets may gradually cool and be thoroughly annealed, I arrangel in the tunnel below rods 15 a plurality of transverse partitions 20 so that the tunnel isvdivided into a series of compartments or chambers 21, the heat condition of each of which may be independently determined by proper regulation of one or more burners 22 arranged in each chamber. Each of said chambers is rovided at its bottom with doored venti ating openings 23. Other valved'ventilating openings 24 in the upper region of the tunnel are provided so that the heatconditions in any one of the compartments 21 may be regulated and accurate- 75 ly determined.

Partitions 20 are spaced apart the forwarding distance of bars 16 so that each sheet of glass` passes successively into and through each chamber tion of the burners and dampers of each chamber 21 makes possible an accurate application of heat to each sheet of glass so that it will emerge from the tunnel properly flat and annealed.

I claim as my invention:

1. A flattening oven for window -glass comprising a main' flattening chamber, an annealing tunnel, a settling chamber forming a connection between the flattening go chamber andthe .receiving end of the tunnel, and in unobstructed communication therewith whereby a ilattening temperature will be maintained therein from the heat in the flattening chamber, and means for re- 95 ceiving and forwarding successive sheets of glass from the main chamber through the settling chamber and into and through the tunnel.

2. A flattening oven for window glass x00 comprising a main flattening chamber, an

divided into a plurality of successive compartments, heatin means for independently controlling the eat conditions of each compartment, a settlin cham- 10| ber forming aconnection between e dat ofvtlia.v tunnel, and in unobstructed communication? 21. Proper regulap therewith whereby a flattening temperature will be maintained therein from the heat in the iattening chamber,.and means for receiving and forwarding ysuccessive sheets of `glass from the main chamber through lthe settling chamber and into and through the tunnel by successive steps from one tunnel chamber to another. u v

3. A flattening `oven for window glass comprising a main flattening chamber, an

- annealing tunnel divided into a plurality of successive compartments, means for independently controllingthe heat conditions of each compartment, a settling chamber forming a connection between the `iattening chamber and the receiving end of the tun-- f nel, and in unobstructed communication sive steps fro other.

` tions of each compartment, a settling chamcomprising a main ,flattening chamber, an annealing tunnel divided into a plurality of successive compartments, heatin means for independently cont-rolling the. eatfcondiother. 1 5. A flattening oven Acomprising a main flattening chamber, a settling. chamber free- 4. A flattening oven for ,window glass" ber forming a connection between the flattening chamber and the receiving end of the tunnel, land in unobstructed communication .therewith whereby a flattening temperature will be maintained therein by vthe heat in the flattening chamber, means independent of the heating means lfor the tunnely `for modifying the heat condition of said settling chamber, and means for receiving and forwarding successive sheets of glass from the main chamber throurh the settling chamber and into and throug the ytunnelby successive steps from one tunnel chambervto anly-open to the` heat o f the main chamber whereby aliattening heat will be maintained in the settling chamber by the heat in-'the flattening chamber, an annealing tunnel com municating with the settling chamber at a point remote 'from the main chamber, and

means extending from the main chamber through the settlingt chamber and tunnel upon which successive sheets of glass may be received 1n the mam chamber .and forwarded first into and through the settling chamber and thence into and through the tunnel. K v i In witness whereof, I have hereunto set my hand at Okmulgee, Oklahoma, this 15th' day of November, A. D. one thousand nine hundred and twrg six. 

